Trango Big Bro

Priced: $69.95 - $89.95 Rated:   - 5 stars out of 5 by 4 reviews.
Trango Big Bro
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Color: #1.0
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Trango Big Bro -
Trango Big Bro climbing protection is built with an expandable tube chock design to protect your scared, groveling carcass when cracks grow to offwidth and squeeze-chimney sizes. Get the weight off your shaky fist stack, stick a Big Bro in the crack, push the button to extend it to the right size, and twist the sleeve to lock it in place. Since Big Bros resist pull in any direction, they're nearly impossible to accidentally dislodge as you climb past. These unique protection pieces are lighter and easier to rack than similar sized cams, and they're the only hope for pro once you start climbing into chicken-wing sizes.


  • Size #


  • Weight
  • Expanding tube chock design is stable, lightweight, easy to use and strong.
  • 20.4
  • 3.2
  • 109
  • Color
  • 4.3
  • 18.4
  • 11.3
  • 12.3
  • 4.0
  • 12.0
  • (kN)
  • 7.5
  • 2.7
  • 204.1
  • 191
  • Ideal protection for big cracks and offwidths
  • 69
  • 578.3
  • 86
  • 175.8
  • A #5 Big Bro has greater range than an entire set of traditional cams.
  • 145
  • 133
  • Strength
  • 4.7
  • 348.7
  • (oz)
  • Red
  • 305
  • max (mm)
  • 3.4
  • To be slung with 5mm or 5.5mm cord
  • 15
  • Blue
  • Purple
  • 6.2
  • min (in)
  • min (mm)
  • 101
  • 467
  • 263.7
  • Green
  • 81
  • max (in)
  • 7.2
  • (gm)
  • 203
  • 5.7
  • 135
  • 9.3
  • 0.5
  • 8.0
  • Gold
  • 5.3
  • 287
  • Silver

These puppies are big! For fist crack and offwidth aficionados, Big Bro's from Trango are your way to go! The expanding tube chock design is stable, lightweight, easy to use and strong. Because of their stable nature when they're placed correctly they're almost impossible to dislodge when you're grunting by them, and they make a nice smooth rope guide at the lip of a roof. Their expansion range is phenomenal—a #5 Big Bro has greater range than an entire set of traditional cams!
Craig Luebben, the designer of the Big Bro, died in a tragic guiding accident in August of 2009. His royalty stream will go directly into a 529 college fund for his beloved daughter Giulia. Every Big Bro you buy will contribute money into Giulia's college fund. Just for fun, we asked Jeremy Collins to draw a caricature of Giulia that we're engraving on all of the Big Bro's.

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Average Price History: Price History
Review RatingNumber of Reviews
Size 0.5:69mm-86mm, 2.7"-3.4", 133g, 4.7oz, 15kN, Silver
Size 1:81mm-109mm, 3.2"-4.3", 175.8g, 6.2oz, 15kN, Red
Size 2:101mm-145mm, 4.0"-5.7", 204.1g, 7.2oz, 15kN, Purple
Size 3:135mm-203mm, 5.3"-8.0", 263.7g, 9.3oz, 15kN, Green
Size 4:191mm-305mm, 7.5"-12.0", 348.7g, 12.3oz, 15kN, Blue
Size 5:287mm-467mm, 11.3"-18.4", 578.3g, 20.4oz, 15kN, Gold
Weight:See Chart
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Trango Big Bro Reviews:

Positive Reviews:

If you're like me and enjoy body scrumming up a d&w (deep and wide) offwidth then Big Bros are worth the investment. My partner and I recently found a virgin offie smack dab in the middle of a sport climbing crag after some scouting we made the first ascent (we think cause no self-respecting sportie would submit their body to such torture) using BBs. For their range and value, four thumbs up way up from two sick offwits!

offwits at on 05/16/2006

After a while of fidgiting with these in safe conditions these can be your best choice for range and value if the conditions permit. A good way to set them is to wiggle them around then tightenthem then wiggle them some more then tighten again repeat untill secure. Works best if you can find a bump to help place. Definitely hard to use on lead if never had practice with.

john gilchrist at on 12/11/2006

I got the #4 Big Bro to expand my gear range. At its smallest it is like a tipped out #6 cam (BD or Wild Country). Sometimes it is just what you need!

Keelan Johns at on 04/24/2012

Neutral Reviews:

I thought the big bro would be much easier to place and get a bomber placement in an off-width than it is. I had trouble placing it in the off-width I thought it would work well for. But I have another one in mind and I think it should work for that one. Hopefully it will but so far it hasn't done me much good, just really big and expensive! Still love how badass it looks though, lol.

cot4816335 at on 10/10/2011